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Few shapes in motoring are as famous as the Countach. Built from 1974 to 1990, it evolved from the clean LP400 through the LP400 S and LP500 S to the four-valve 5000 Quattrovalvole and the 25th Anniversary. This guide joins our model-by-model series alongside the Gallardo, Murciélago, Aventador, Huracán, Sián, Urus, Diablo and Revuelto guides. It covers the original Countach, not the 2022 Countach LPI 800-4.
Our main source here is Lamborghini's factory workshop manual for the L406 engine, the 3.9-liter V12 of the original LP400. It is written in Italian for the factory's own technicians, and alongside its rebuild procedures it gives the LP400's routine service figures: when to replace the oil and air filters, plug, points and valve settings, and the coolant mix. Those rows are marked as verified for the LP400. The manual does not cover the later 4.8- and 5.2-liter engines, and it gives no oil-change, gearbox or brake-fluid interval, so those items, and every interval for the LP400 S, 5000 S, Quattrovalvole and 25th Anniversary, are still marked unverified.
A short disclaimer before the table: the LP400 figures come from the factory workshop manual cited above, and the parts and version fitment come from the Lamborghini parts catalogs we carry for US-market cars, checked against each product page. Countach specifications changed often, and cars built for other markets differ, so confirm by chassis number. For the schedule itself, your car's handbook is the authority, and we stock original copies in our owner's manuals category.
Version names follow the Lamborghini parts catalogs for US-market cars: LP400 (1974–1978), 5000 S (1984), 5000 Quattrovalvole (1985–1987) and 25th Anniversary (1989).
| Service item | Interval (source) | Variant notes | What's needed |
|---|---|---|---|
| Service schedule | No complete schedule appears in the engine workshop manual. The owner's handbook and service booklet set the full schedule for each version (unverified) | Handbooks differ by version | LP400 owner's manual 901120502, LP400 S owner's manual 901120503, 5000 owner's manual 901240501, 5000 Quattrovalvole owner's manual 901240500, 25th Anniversary owner's manual 901285402 |
| Engine oil filter | LP400: replace the filter cartridge every 5,000 km (about 3,100 miles) in any case (factory workshop manual, lubrication section) | Later versions: unverified. The filter changed with the Quattrovalvole. The manual lists the cartridge as Lamborghini 1501188, the same number as the Bullstuff part | LP400 and 5000 S: oil filter cartridge 001501188 with seal 001501128. 5000 Quattrovalvole and 25th Anniversary: oil filter 001505914 |
| Engine oil | Change interval, grade and capacity unverified; the engine workshop manual does not give them. Running oil pressure on a healthy LP400 engine is 7–8 kg/cm² | Follow your handbook | Oil to your handbook's specification |
| Engine air filters | LP400: replace the filter cartridges every 10,000 km (about 6,200 miles). Two dry filters, one per bank of carburetors | Later versions: unverified. Carbureted cars and the later injected cars use different elements. The manual's LP400 element number (1305431) differs from the cataloged part below, so confirm by chassis number | LP400 and 5000 S: air filter 001320172. 5000 Quattrovalvole and 25th Anniversary: air filter 07M133843 |
| Spark plugs (set of 12) | LP400: Bosch W 235 P 21, gapped to 0.35 mm, M14 x 1.25 thread. Replacement interval unverified | No LP400 plug is listed on the product pages we checked; ask us by chassis number | 5000 S: 008811403. 5000 Quattrovalvole and 25th Anniversary: 001630009. Both sold each |
| Ignition points, leads and distributor cap | LP400: two Marelli S 85 CA distributors, points gap 0.35 ± 0.05 mm. Inspection interval unverified | Lead sets are specific to each version | Leads: 001610428 for the LP400, or 001623453 for the 1985 Quattrovalvole and 25th Anniversary. Distributor cap 001619316 for the 5000 S, Quattrovalvole and 25th Anniversary (NLA, no longer available from Lamborghini; email us for alternatives) |
| Valve clearance | LP400: 0.25 mm intake and exhaust, set cold. Check interval unverified | The camshafts are chain-driven; the manual gives no chain replacement interval | Workshop procedure |
| Fuel filters | Unverified | The LP400 uses an electric Bendix pump feeding six Weber twin-choke carburetors. Fuel systems changed between versions | 25th Anniversary: fuel filter cartridge 006223973. Fuel regulator filter: 006220010 for the 5000 S, or 006222108 for the 1985 Quattrovalvole and 25th Anniversary |
| Coolant | LP400: Agip F 1 Antifreeze at 20 to 45 percent, protecting from −10 °C down to −35 °C. The thermostat starts to open at 83 ± 2 °C and is fully open at 92 °C. Change interval unverified | Later versions: unverified | Antifreeze to your handbook's specification |
| Alternator belt | Unverified; inspect at every service | Three belts across the range | 001609853 for the LP400; 001613915 for the 5000 S and 1985–1986 Quattrovalvole (NLA, no longer available from Lamborghini; email us for alternatives); 001627420 for the 25th Anniversary |
| A/C compressor belt | Unverified; inspect at every service | Listed for the LP400 | A/C belt 004504532 (NLA, no longer available from Lamborghini; email us for alternatives) |
| Brake pads | Unverified; check pad wear at every service | Eight pads per car; cataloged for the 5000 S and 25th Anniversary | Brake pad 003113912, front and rear, sold each (NLA, no longer available from Lamborghini; email us for alternatives) |
| Parking brake pads | Unverified | Cataloged for the 5000 S and 25th Anniversary | Pad kit 003318969 (NLA, no longer available from Lamborghini; email us for alternatives) |
| Brake fluid, gearbox and differential oil | Unverified; follow your handbook | Not covered by the engine workshop manual | Fluids to your handbook's specification |
Most Countaches today cover few miles, so time matters as much as distance. Oil, brake fluid and coolant keep aging while a car sits, and owners and specialists commonly service a stored Countach on a time basis as well as on mileage. On an LP400, the factory asks for a new oil filter cartridge every 5,000 km, so a spare cartridge and seal on the shelf is worth having.
Carburetor and fuel-injection cars need different filters, plugs and ignition parts, and the Countach changed often in between the headline versions. Have your chassis number ready when you order, and we'll match the part to the car.
Several Countach service parts are no longer supplied by Lamborghini. We've sourced alternatives for many of them, so ask about anything marked NLA.
For a broader walk-through of filters, brakes, plugs and fuel pumps, see our routine maintenance guide.
Bullstuff, also known as Lambostuff, is No Limits Solutions LLC in Xenia, Ohio. We stock the routine Countach items: oil and air filters, spark plugs, ignition leads, fuel filters, belts, brake pads and original owner's handbooks, and we track down alternatives for parts Lamborghini no longer supplies. Please confirm every interval against your own handbook before you book the work; the factory figures above apply to the LP400, and later versions may differ. If you are unsure which part fits your car, email us at sales@bullstuff.com with your request, and it will be handled promptly.